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<?php date_default_timezone_set('America/New_York'); $a = strtotime('08:00'); $b = strtotime('03:00'); echo $a."<br>"; echo $b; $c = $a - $b; $d = date('H:i:s',18000); echo "<br>".$c; echo "<br>".$d;

preferences:
37.38 ms | 402 KiB | 5 Q